A. Kamenev et Y. Gefen, PHI(0)-PERIODIC AHARONOV-BOHM OSCILLATIONS AND ENSEMBLE AVERAGING, Physical review. B, Condensed matter, 49(20), 1994, pp. 14474-14477
We have demonstrated that PHI-periodic Aharonov-Bohm oscillations meas
ured in an ensemble of rings may survive after ensemble averaging proc
edure. The central point is the difference between the preparation sta
ge of the ensemble and the subsequent measurement stage. The robustnes
s of the effect under finite temperature and nonzero charging energy o
f rings is discussed.